(传感器应用技术)实训论文说明书题 目： 红外感应门铃设计 院 （系）： 信息与通信学院 专 业： 电子信息工程 摘 要本设计的红外线感应电子门铃，可在来客距房门一定距离时发出音频信号，以告知主人“有客来访”。该门铃还可兼作报警器用。电路能探测人体发出的红外线，该红外线感应电子门铃电路由红外线发射电路、红外线接收电路、低频振荡器、音频振荡器和音频输出电路等组成。当人进入感应的区域，即可发出铃声或者报警声，适用于家庭、办公室、仓库、实验室等比较重要场合的铃声和报警。概述了红外辐射的知识、反射式红外传感器的结构和工作原理。利用反射式红外传感器设计了一种被动式红外报警电路,分析了该电路的功能和工作原理。反射式红外传感器具有很多的优点,在人们生活、安全、警戒等装置中应用较广。关键字：红外线 反射式 感应门铃 AbstractThe design of the infrared sensor electronic doorbell can be a certain distance visitors from the door an audible signal to inform the master when guests are coming. The doorbell can also double as alarm Used. The circuit can detect the infrared issued by the body, the infrared sensor electronic doorbell circuit by the infrared transmitter circuit, infrared receiver circuit, low-frequency oscillator, audio oscillator, and the audio output circuit composition. When people into the induction area, you can send the ringtone or alarm sound for ring tones and alarms in homes, offices, warehouses, laboratories and other important occasions. An overview of the structure and working principle of the infrared radiation of knowledge, reflective infrared sensor. Use reflective infrared sensor designed a passive infrared alarm circuit, the circuit functions and working principle. Reflective infrared sensor has many advantages, widely used in people's lives, safety, and warning devices.Key word:Infrared reflective sensor doorbell目录1 绪论 11.1 课题来源的意义 11.2 课题讨论背景 11.3 课题讨论容 22 系统设计 22.1 系统方案...
